1. A city of 30, 000 people receives 1.25 kW per person from a pair of transmission lines across which a 120 kV potential difference exists. The voltage is stepped down to 120 V at a transformer. Calculate: A. the current in the primary coil. B. the ratio of the number of turns in the primary coil to the number of turns in the secondary coil. C. How much current would have to flow if the power is transmitted at 120 V instead of 120,000 V?
1. A city of 30, 000 people receives 1.25 kW per person from a pair of transmission lines across which a 120 kV potential difference exists. The voltage is stepped down to 120 V at a transformer. Calculate: A. the current in the primary coil. B. the ratio of the number of turns in the primary coil to the number of turns in the secondary coil. C. How much current would have to flow if the power is transmitted at 120 V instead of 120,000 V?
Chapter7: Electricity
Section: Chapter Questions
Problem 27P: . The generator at a large power plant has an output of 1,000,000 kW at 24,000 V. (a) If it were a...
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![1. A city of 30, 000 people receives
1.25 kW per person from a pair of
transmission lines across which a 120
kV potential difference exists. The
voltage is stepped down to 120 V at a
transformer. Calculate:
A. the current in the primary coil.
B. the ratio of the number of turns in
the primary coil to the number of turns
in the secondary coil.
C. How much current would have to
flow if the power is transmitted at 120
V instead of 120,000 V?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa222ff31-481e-4c1c-b4b4-58fb94cf2b65%2Fa9706d7d-c48f-496d-b5c9-d254c34fc402%2Fctcy4if_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. A city of 30, 000 people receives
1.25 kW per person from a pair of
transmission lines across which a 120
kV potential difference exists. The
voltage is stepped down to 120 V at a
transformer. Calculate:
A. the current in the primary coil.
B. the ratio of the number of turns in
the primary coil to the number of turns
in the secondary coil.
C. How much current would have to
flow if the power is transmitted at 120
V instead of 120,000 V?
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